1790D-T0B16 Allen-Bradley | 16-Point PNP Digital Output Base

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Allen-Bradley 1790D-T0B16 CompactBlock LDX DeviceNet I/O Base Block

Product Overview

The 1790D-T0B16 is a high-density digital output module from the Allen-Bradley CompactBlock LDX family, designed for cost-effective distributed I/O control over DeviceNet networks. This base block provides 16 discrete 24V DC sourcing (PNP) outputs in a compact, open-style housing. It is engineered for industrial applications where space is limited but high point-count density is required. As a standalone DeviceNet node, the 1790D-T0B16 integrates seamlessly with Rockwell Automation controllers to drive actuators, solenoids, and motor starters while offering built-in protection and diagnostic visibility.

Technical Specifications

The 1790D-T0B16 utilizes advanced transistor switching technology to ensure reliable operation in high-cycle automation environments.

• Manufacturer: Rockwell Automation / Allen-Bradley

• Model Number: 1790D-T0B16

• Series: CompactBlock LDX

• Number of Outputs: 16 Digital Outputs

• Output Type: Sourcing (PNP) Transistor

• Nominal Operating Voltage: 24V DC

• Operational Voltage Range: 10V to 30V DC

• Output Current Rating: 0.5A per point (Maximum 8A total per module)

• On-State Voltage Drop: Max 0.5V DC

• Off-State Leakage Current: Max 1.0 mA

• DeviceNet Current Draw: 250 mA @ 24V DC (logic side)

• Baud Rates: 125 kbps, 250 kbps, 500 kbps (Auto-detecting)

• Isolation Voltage: 50V continuous (500V AC dielectric test for 60s)

• Enclosure Rating: IP20 (Open Style)

• Operating Temperature: 0°C to +55°C (32°F to 131°F)

• Storage Temperature: -40°C to +85°C (-40°F to +185°F)

• Vibration/Shock: 5 g @ 10–500 Hz / 30 g

• Weight: 0.35 lbs (0.16 kg)